Q26 (A). Define an electrolytic cell. Describe with a neat diagram, an electrolytic cell for the decomposition of molten NaCl. Write the reactions at the anode and cathode. (5 Marks) Q26 (B). (a) Evaluate the molarity of a solution that contains 10.50g of Ca(OH)2 in 2250 ml of solution. (2 Marks)

(b) How many grams of water must be used to dissolve 82 g of C6H5COOH to prepare a 1.75 m solution. (3 Marks)

Q26 (C). (a) Explain the following redox reactions: (3 Marks)

(i) 3Ti + 2Cr+3 → 3Ti+2 + 2Cr

(ii) 3Mn + 2Fe+3 → 2Mn+2 + 2Fe

(b) Find the oxidation number of the underlined element in the following: (2 Marks)

(i) C2H4O6-2

(ii) Cr2O5